Spray pattern demonstration kit

ABSTRACT

The present application relates generally to a demonstration kit for various nozzles. The demonstration kit may include a spray assembly and a control assembly. The spray assembly may include a case having a base and a cover rotatably coupled to the base, a plurality of back wall panels configured to be secured to a sidewall of the base, a boom connected to an interior surface of the case, and one or more nozzles connected to the boom and repositionable along a length of the boom. The control assembly includes at least one pump that when in an operating orientation is fluidly connected to the one or more nozzles and a portable power supply in electrical communication with the at least one pump.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. Ser. No. 14/616,190 filed onFeb. 6, 2015, which claims benefit of Provisional Ser. No. 62/012,801filed Jun. 16, 2014, the contents of all of which are hereinincorporated by reference.

FIELD

The present disclosure relates generally to spraying devices, such asnozzles, and more specifically to devices for comparing anddemonstrating not only nozzles but also rheologically distinct spraysolutions.

DESCRIPTION OF THE RELEVANT ART

The spray characteristics of a nozzle may be varied based on the type offluid the nozzle is expelling, the flow rate of the fluid, the shape ofthe nozzle, and other factors. It may be desirable to compare differentnozzles during operating conditions. However, to date the need tocompare the same nozzle with different types of fluids, or the like, inorder to determine what nozzle may be better for a particularapplication and/or to compare nozzles by different manufactures, etc.,has been unfilled. As such, there is a need for a demonstration devicethat can compare two or more nozzles adjacent one another, and incertain situations, maintain, recirculate, and separate distinct sprayedfluids. Improved control of the device is also desirable. Conventionaldevices generally rely on manual adjustment of system pressure bymanually adjusting fluid bypass valves, which may not be accurate and/orrepeatable. Additionally, improvements over the current state of the artto increase the portability, setup, maintenance, and inherent safety ofthe device may be desirable to improve the usability of thedemonstration device.

SUMMARY

Some embodiments of the present disclosure may include a demonstrationkit. The demonstration kit may include a spray assembly and a controlassembly. The spray assembly may include a case having a base and acover rotatably coupled to the base, a plurality of back wall panelsconfigured to be secured to a sidewall of the base, a boom connected toan interior surface of the case cover, and one or more nozzles connectedto the round boom that are repositionable along a length and radius ofthe boom. The control assembly may include at least one pump that, whenin an operating orientation of the demonstration kit, is fluidlyconnected to the one or more nozzles and a portable power supply inelectrical communication with the at least one pump. In some embodimentsthe portable power supply operates on intrinsically safe low voltagedirect current, typically around 12 volts.

Other aspects, features, and details of the present disclosure can bemore completely understood by reference to the following detaileddescription of a preferred embodiment, taken in conjunction with thedrawings and from the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front isometric view of a demonstration kit in an operatingorientation.

FIG. 2 is a top isometric view of a spray assembly of the demonstrationkit of FIG. 1.

FIG. 3 is a front elevation view of the spray assembly of FIG. 2.

FIG. 4 is a bottom isometric view of the spray assembly of FIG. 2.

FIG. 5 is another front elevation view of the spray assemblyillustrating a lighting element.

FIG. 6 is a rear isometric view of the spray assembly of FIG. 2.

FIG. 7 is a rear elevation view of the spray assembly of FIG. 2.

FIG. 8A is a top isometric view of the spray assembly of FIG. 2 in thetraveling or compact orientation.

FIG. 8B is a front elevation view of the spray assembly of FIG. 8A.

FIG. 9A is a bottom plan view of a top cover for a case for the sprayassembly.

FIG. 9B is a bottom isometric view of the top cover of FIG. 9A.

FIG. 9C is a cross-section view of the top cover of FIG. 9A taken alongline 9C-9C in FIG. 9A.

FIG. 9D is a cross-section view of the top cover of FIG. 9A taken aloneline 9D-9D in FIG. 9A.

FIG. 10A is a top isometric view of a base for the case of the sprayassembly.

FIG. 10B is a top plan view of the base of FIG. 10A.

FIG. 10C is a cross-section view of the base of FIG. 10A taken alongline 10C-10C in FIG. 10B.

FIG. 10D is a cross-section view of the base of FIG. 10A taken alongline 10D-10D in FIG. 10B.

FIG. 11 is an enlarged view of the spray assembly of FIG. 3.

FIG. 12 is another enlarged view of the spray assembly illustrating thenozzle turret and attachment feature.

FIG. 13 is a top isometric view of the base of the spray assemblyillustrating the reservoir tanks.

FIG. 14 is a top isometric view of the base of FIG. 13 with selectelements hidden for clarity.

FIG. 15 is an enlarged view of a control assembly of the demonstrationkit of FIG. 1.

FIG. 16 is a top isometric view of the control assembly of FIG. 15.

FIG. 17 is a front isometric view of the demonstration kit of FIG. 1 ina traveling or packed orientation.

FIG. 18A is a top front isometric view of another example of thedemonstration kit.

FIG. 18B is a right top isometric view of the demonstration kit of FIG.18A.

FIG. 18C is a left isometric view of the demonstration kit of FIG. 18A.

FIG. 18D is an enlarged view of FIG. 18C.

FIG. 19 is an enlarged top plan view of the demonstration kit of FIG.18A including a fastener for securing the intake to the drainage area ofthe demonstration kit.

FIG. 20 illustrates an isometric enlarged view of a bracket assembly forsupporting a boom for the spray demonstration kit.

FIG. 21 illustrates a front elevation view of the spray demonstrationkit of FIG. 20.

FIG. 22 illustrates a front elevation view of another example of thecontrol panel.

OVERVIEW

Embodiments of the present disclosure may take the form of ademonstration kit that can be used to illustrate and compare spraycharacteristics of one or more application scenarios using variations ofany or all of the following variables: nozzle type, fluid pressure, andspray solution. The demonstration kit may be configured such that two ormore nozzles may be operated adjacent one another and optionally at thesame time. This allows a user to better compare the spraycharacteristics of the two or more nozzles and/or nozzles with differentfluid and/or flow characteristics. Additionally, the demonstration kitmay be portable and include a plurality of components that may befolded, disassembled, or otherwise reconfigured in order to fit within atraveling assembly.

In one embodiment, the demonstration kit may include a spray assemblyand a control assembly and the two assemblies may be fluidly connectedthrough one or more hoses and quick connect valves. The control assemblyincludes a power assembly, one or more pumps that pump fluid to nozzleassemblies within the spray assembly, a pulse dampening assembly, andmay include one or more control circuits that vary the speed and otheroperating characteristics of the pump to vary the flow to the nozzles,e.g., through a pulse width modulation signal. The spray assemblystructure may include one or more fluid reservoirs, a plurality ofnozzles, a boom or other nozzle support structure, and a plurality ofsidewall panels. In operation, the control assembly pulls fluid from thefluid reservoir(s) within the spray assembly and pumps the fluid to thenozzle assemblies via a plurality of hoses or tubes. The nozzles thenemit the fluid, where the characteristics of the fluid output depend onthe nozzle structure, type of fluid in the reservoir, and the pumpcharacteristics varied by the control assembly which the variouscharacteristics may be viewed by one or more users.

The demonstration kit may provide for a plurality of different reservoirconfigurations. For example, in one configuration, the device mayinclude one or more recirculating reservoirs where fluid in thedemonstration kit is circulated via the reservoirs provided a closedloop system, where fluid can be conserved. As another example, inanother configuration, the reservoir may be a standalone reservoirseparate from the kit or a fluid source (e.g., wall fluid outlet) andthe fluid may be disposed of and it is expelled from the nozzles.

In one embodiment, the demonstration kit may include an enclosure orcase that supports the spray assembly and/or the control assembly, aswell as functions as a reservoir. For example, a bottom portion of thedemonstration kit may include drainage areas that are sloped ordepressed and a pump intake hose may be positioned within the drainageareas. During use, the bottom portion is positioned to receive fluidfrom the spray assembly and the fluid then drains to the pump intake tobe recirculated. After use, the bottom portion may function as a storagecompartment for one or more components.

After use, the components for each the spray assembly and the controlassembly may be disassembled and stored within the respectiveassemblies. This allows the demonstration kit to be portable and easilytransported by a single person. Conventional spray demonstration tablesare very heavy, not easily portable, and difficult for a single personto transport. On the contrary, the demonstration kit of the presentdisclosure allows a single person to transport the kit, assemble and usethe kit, and disassemble the kit after use. Further, the demonstrationkit of the present disclosure may include a portable power supply tooperate the pumps, which allows the demonstration kit to have anuntethered operation and be used in a variety of locations. Thedemonstration kit can be assembled and disassembled by hand, i.e.,without tools, which makes the demonstration kit also easy to use.

DETAILED DESCRIPTION

Turning now to the figures, a demonstration kit of the presentdisclosure will be discussed in more detail. FIG. 1 is a front isometricview of a demonstration kit 100. As shown in FIG. 1, the demonstrationkit 100 may include a spray assembly 102 and a control assembly 104.Each of the assemblies 102, 104 may include a case or container 106, 156that is used to support and house the components of the respectivelyassembly 102, 104 during use and transportation. When in use or in anoperating orientation, the spray assembly 102 is fluidly connected tothe control assembly 104 through a plurality of hoses 120, 122, quickconnect valves, and optionally may be coupled to the control assembly toprovide power to one or more components such as a lighting element. Itshould be noted that although the spray assembly 102 and the controlassembly 104 are depicted as two separate components, in otherembodiments the features of the control assembly 104 may be incorporatedinto the spray assembly 102. However, in embodiments where the controlassembly 104 is separate from the spray assembly 102, the electroniccomponents within the control assembly 104 may be better protected fromfluid damage as they are separated from the fluid reservoir and sprayingelements of the spray assembly, as will be discussed in more detail.Additionally, when separated, the two assemblies may be stored inseparate locations, which may be desirable based on available storagespace.

Spray Assembly

The spray assembly 102 will now be discussed in more detail. FIGS. 2-7illustrate various views of the spray assembly 102 in an operatingorientation. With reference to FIGS. 2-7 the spray assembly 102 mayinclude a case 106 or container having a base 162 and a cover 160rotatably connected to the base 162. Each of the components of the sprayassembly 102 are connected either directly or indirectly to the case106. The base 162 of the case 106 provides the main support of the sprayassembly 102. In one embodiment the case 106 is constructed out of arigid but somewhat light weight material. In one example, the case 106is constructed out of plastic; however, many other material types areenvisioned. As a specific example, the case 106 may be foam-coreinjection molded plastic such as the Pelican 1770 sold by Pelican. Inanother example, the case may be a Fat-Max case sold by Stanley.

FIGS. 8A and 8B illustrate the case 106 in the closed position. Withreference to FIGS. 8A and 8B, in the closed or transportationorientation, the cover 160 is positioned over the base 162. A pluralityof latches 164 a-164 d may be used to secure the cover 160 to the base162 and keep the case 106 in the closed position. The case 106 may alsoinclude one or more handles. For example, as shown in FIG. 8A a handle142 is connected to a sidewall of the base 162. It should be noted thatthe handle 142 may be located at other locations on the base 162 and/orcover 160 and the handle 142 shown in FIG. 8A is meant as illustrativeonly. For example, the handle 142 may be connected to the top of thecover 160 or front sidewall of the base 162 (see, e.g., the handle forthe control case 156).

The cover 160 encloses the base 162 and, as will be discussed in moredetail below, provides support for a plurality of components of thespray assembly 102 to orient them above the base 162 in the operationorientation. FIGS. 9A-9D illustrate various views of the cover 160removed from the case 106. With reference to FIGS. 9A-9D, the cover 160is generally rectangular shaped and may include an exterior surface 176and an interior surface 168. A perimeter sidewall 170 extends upwardsfrom an edge of the interior surface 168 to define a cover cavity 174. Aplurality of supporting bars 172 a-172 d extend upwards from theinterior surface 168 at discrete locations along the interior surface168. The support bars 172 a-172 d provide additional structural supportfor the cover 160 and may extend across a width or a substantial portionof the width of the cover 160. In one example, the cover 160 may includefour support bars 172 a-172 d spatially separated from each other alongthe length of the cover 160. However, depending on the material used forthe cover 160, the support bars 172 a-172 b may be increased, reduced,or omitted. For example, the stronger a material may be the fewersupport bars may be used.

With reference to FIGS. 9A and 9B, the cover 160 may also include astrengthening pattern 166 defined on the interior surface 168. In oneexample, the strengthening pattern may be a honeycomb pattern 166, whichsimilar to the support bars 172 a-172 d, provides additional strengthand rigidity to the cover 160. Additionally, the honeycomb pattern 166may provide anchoring locations to secure one or more components of thespray assembly 102 to the cover, as will be discussed in more detail. Asshown in FIGS. 9A and 9B, the honeycomb pattern 166 may not extend overthe support bars 172 a-172 d. However, in other examples (see FIG. 14),the honeycomb pattern 166 extends over the support bars 172 a-172 d.

The base 162 will now be discussed in more detail. FIGS. 10A-10Dillustrate various views of the base 162. With reference to FIGS.10A-10D, the base 162 may include a top surface 180 and a bottom surface188, the bottom surface 188 supports the base 162 on a table, floor, orother structure, the top surface 180 forms an interior surface of thebase 162. The base 162 may be constructed of the same material as thecover 160 and similar to the cover 160 may be rigid and somewhatlightweight in order to allow a person to more easily move the sprayassembly 102.

With reference to FIGS. 1 and 3, the base may also be configured to beused with a plurality of support legs 165 that help to balance the baseduring operation of the spraying assembly 102. The support legs 165 maybe extendable and may extend wider than the width of the base to fullysupport the spray demonstration table when in use. The support legs 165may be removable from the base or may be integrally formed therewith.Additionally, although two support legs are illustrated, the base mayhave any number of support legs as desired and the number and structuremay be varied based on the configuration of the base.

The base 162 may be configured to substantially match the cover 160 sothat when the cover 160 is closed, the cover 160 sidewall 170 alignswith a top surface of a sidewall 184 of the base 162. In someembodiments, the cover 160 seals against the base 162 in the closedposition to provide a substantially liquid tight seal. In theseembodiments, the demonstration kit may be transported and stored withoutliquids leaking into or out of the case 106. Additionally, the liquidtight seal may help to prevent any residual spray liquid that may nothave drained from leaking out.

The base sidewall 184 extends upwards from the top surface 180 to definethe base cavity 190. The sidewall 184 extends around and defines theperimeter of the base 162. In one example, the base has a rectangularshape with two longitudinal sidewalls and two edge sidewalls. Thesidewall 184 may be a constant height, but in other embodiments thesidewall 184 may have a varying height. As will be discussed in moredetail below, the base cavity 190 may act as a reservoir for the sprayassembly 102 to hold and recirculate fluid. The base may also includeone or more drain plugs 185 that allow the base to be drained ininstances where fluid may spill into the base or when the base itself isused as the reservoir.

The base 162 may further include a plurality of recesses 182 a-182 dextending across a width of the base 162. The recesses 182 a-182 d maybe spaced apart from one another long the length of the base 162.Additionally, the base 162 may include two wheel wells 186 a, 186 b onone end. The wheel wells 186 a, 186 b may define cavities on the bottomsurface 188 of the base 162 that are configured to receive wheels toallow the base 162 to be wheeled on a surface. In one embodiment, thewheel wells 186 a, 186 b extend upwards into the base cavity 190 toprovide clearance for the wheels (not shown) connected therein.

With reference again to FIGS. 1-7, the spray assembly 102 may alsoinclude a plurality of back wall panels 124, 126, 128, 130 and twosidewall panels 134, 136. The back wall panels 124, 126, 128, 130 andthe sidewall panels 134, 136 may be substantially similar to each other,but may vary in dimensions based on each respective location on the base162 in the operation orientation. The panels 124, 126, 128, 130, 134,136 are selectively removable from the base 162 and often their widthand height may be selected so that they may be positioned within thebase cavity 190 during transportation. It should be noted that in someembodiments the panels may be combined with one another and the discretepanels may be formed as folded or creased sections within the largerpanel. For example, the two sidewalls 134, 136 may be formed integrallywith the two adjacent base panels 124, 130, so that the panels cover thecorner of the spray assembly and the folded configuration enhances therigidity of the panels as will be discussed in more detail below.

The panels 124, 126, 128, 130, 134, 136 may be a lightweight but rigidmaterial. In one example, the 124, 126, 128, 130, 134, 136 arecorrugated plastic (such as COROPLAST), which is waterproof,lightweight, and durable. However, in other similar materials may beused as well. Additionally, in some embodiments the panels 124, 126,128, 130, 134, 136 may be painted or otherwise may be formed of acontrast-enhancing color. As one example, the panels 124, 126, 128, 130,134, 136 may be painted black or another dark color (e.g., navy blue,purple, etc.) that provides a contrast effect with the fluid emitted bythe nozzles of the spray assembly 102. By having a contrasting color,the spray characteristics of the nozzles used with the spray assembly102 may be more easily observed by a user.

The end back wall panels 124, 130 may include cutouts 200, 202 thatextend from a top edge 204 of each panel 124, 130 towards a center ofthe panels 124, 130. The cutouts 200, 202 may be rectangular shaped andare configured to receive one or more portions of the boom 108 and theboom attachment assembly, as will be discussed in more detail below.

With continued reference to FIGS. 2-7, the back wall panels 124, 126,128, 130 may include one or more attachment features 206. The attachmentfeatures 206 are configured to attach panels to one another and/or tothe case and to affix one or more components to the panels. For example,the attachment features 206 may be strips of hook and loop, a pluralityof apertures configured to receive corresponding fasteners, protrusions,or the like. The attachment features 206 may be configured to match acorresponding attachment element on components that may be attached tothe back walls. For example, the attachment features 206 may be used toattach one or more lights to the back wall to illuminate the spraychambers 208, 210. The varying length of the attachment features allowsthe lights or other components to be placed at varying heights on thepanels.

The spray assembly 102 may also include a dividing wall 146. Thedividing wall 146 may be a similar material to the panels 124, 126, 128,130, 134, 136 or may be a different material. The dividing wall 146 isgenerally rectangular and may have a lower height than the panels 124,126, 128, 130, 134, 136. For example, the dividing wall 146 maytypically have a lower height to allow the boom 108 to be placed atvarying heights without interfering with the dividing wall. Withreference to FIG. 5, in one example, the dividing wall 146 may be afolded piece of material where the crease for the fold is orientedoutwards away from the cover 160 in the operating orientation.Additionally, the dividing wall 146 may include two tabs 212, 214 thatextend outward perpendicular to the extension of the dividing wall 146.In this example, the tabs 212, 214 may be formed integrally with thedividing wall 146. However, in other examples, the tabs 212, 214 may bea separate element connected to a longitudinal edge of the dividing wall146. Further, the dividing wall 146 may be configured so that the splitin the folded edge is sufficiently deep so that each side of thedividing wall 146 can reach the optional recirculation reservoir trays(discussed below), so that the sprayed fluid will impact the dividingwall 146 and flow down the wall 146 to reach the respective reservoirtrays.

The spray assembly 102 may also include a splash guard 144. The splashguard 144 may be a transparent or partially transparent material, e.g.,clear plastic, glass, or the like, to allow the spray patterns to beviewed through the splash guard 144. The splash guard 144 may have alength that substantially matches the length of the base 162. The heightof the splash guard 144 may be substantially less than the panels 124,126, 128, 130, 134, 136. In one embodiment, the splash guard 144 mayhave a height that is a quarter or less of the height of the panels 124,126, 128, 130, 134, 136. The shorter height of the splash guard 144allows a user to view more of the spray compartments 208, 210 withoutobstruction. However, the dimensions of the splash guard 144 may bevaried as desired.

With continued reference to FIGS. 1-7, the spray assembly 102 may alsoinclude a boom 108. The boom 108 is a moveable support structure for thenozzle turrets 110, 112. For example, the boom 108 supports the nozzleturrets 110, 112 in a spray position in the operating orientation of thespray assembly 102 and in a collapsed position in the transportationorientation of the spray assembly. The boom 108 may include a supportrod 220 that extends between two arms 222, 224. The support rod 220 maybe a generally cylindrical rod that provides an attachment location forthe nozzle turrets. The use of a cylindrical rather than square shapedstructure allows the nozzle turrets 110, 112 not only to be positionedlaterally on 108 but also radially as desired by the operator. In otherwords, due to the round shape of the rod 220, the nozzle turrets 110,112 may have two degrees of freedom and may be rotated to at differentangles relative to the boom and at different lateral positions along thelength of the boom.

The support rod 220 in one embodiment may have a length of approximately48 inches. The boom 108 may extend substantially the entire length ofthe cover 160. Additionally, as will be discussed in more detail below,is rotatably coupled to the cover 160 so that it can rotate between acollapsed position and an extended position. Additionally, the boom 108may be placed at a number of different heights relative to the base 162in the operating orientation, which allows the height of the nozzleturrets 110, 112 to be selectively varied. It should be noted thatalthough the boom 108 is illustrated as a single member, in otherexamples, the boom may include two or more components. For example,there may be a separate boom for each nozzle turret. In this example,the demonstration kit 100 may be used to illustrate how the nozzle spraycharacteristics vary based on height above a target.

With reference to FIG. 5, the spray assembly 102 may also include alighting element 226. The lighting element 226 emits a light to betterilluminate the spraying chambers 208, 210, which allows a user to betterview the spray characteristics of the nozzles. In one embodiment, thelighting element 226 is a fluorescent light that extends parallel to thelength of the boom 108. However, in other embodiments the light element226 may be a plurality of lights such as light emitting diodes (LEDs),incandescent lights, compact florescent lights, or the like. In thisexample, the lighting element 226 may be one or more LEDs and operate ataround 12 volts and extend substantially the full length of thecontainer, boom, or to shorter lengths. Further, the lighting element226 may be sealed to IP67 or better standard (i.e., be waterproof). Theuse of LEDs may be preferred due to low current draw in relation tolight output, which helps to preserve longevity of the direct currentpower source and for the high and the uniform light output produced byLEDs. Further, LEDs are lightweight and durable with a long service freelife consistent with the overall concept. The relatively low operatingvoltage reduces the risk of severe electrical shock to a user if a fluidor incidental mechanical damage occurs to damage the electricalconnection to the lighting element 226.

With reference again to FIGS. 1-7, the spray assembly 102 may alsoinclude one or more nozzle turrets 110, 112. In one example, each nozzleturret 110, 112 may include a plurality of nozzles 114 spaced apart fromone another. The nozzle turret 110, 112 may be rotated to vary the opennozzle 114, e.g., the nozzle 114 oriented downwards towards the base 162may be the “open” or active nozzle (i.e., the nozzle fluidly connectedto the pumps). In one example, the spray assembly 102 includes twonozzle turrets 110, 112. However, in other examples, the spray assembly102 may include a single nozzle turret or may include three or morenozzle turrets. The number and positioning of the nozzle turrets 110,112 may be varied based on the number of nozzles desired to bedemonstrated or compared with the demonstration kit 100.

The nozzles 114 may vary in size, shape, material, and othercharacteristics. Examples of nozzles 114 that may be used include:nozzles manufactured by TeeJet, Hypro, Greenleaf, Wilger, Lechler,including nozzle models such as AIXR, Al, TT, UCD, TJET, and so on.Example flow rates through the nozzles include around 0.0125-2.0 gallonsper minute per nozzle. As a specific example, the flow rates range fromapproximately 0 to 1.8 gallons per minute per nozzle.

FIGS. 11 and 12 illustrate enlarged views of the spray assembly 102.With reference to FIGS. 11 and 12, the nozzles 114 on the nozzle turret110 are spaced radially around a hub of the turret 110. It should benoted that although only a single nozzle turret is shown in FIGS. 11 and12, the second turret may be substantially the same as the turret shownin FIGS. 11 and 12. The discussion below with respect to the nozzleturret 110 is applicable to the second nozzle turret 112, which mayinclude the same features. Each nozzle 114 is in selective communicationwith an inlet to the turret 110, where the orientation of the turret 110determines which nozzle 114 is fluidly connected to the inlet. Thenozzle turret 110 may include a hose connecting assembly 228. The hoseconnecting assembly 228 is configured to fluidly connect the nozzleturret 110 to one of the hoses 120, 122 and/or pressure gauges 116, 118.

Additionally, each nozzle turret 110, 112 may include a boom connectionfastener 230. The boom connection fastener 230 allows selectiveconnection of the turret 110, 112 to the boom 108 and may allow theturret 110, 112 to be moved along the length of the support rod 220 androtated relative thereto. In one example, the boom connection fastener230 is a clamp structure having two clamping brackets that clamp arounda portion of the support rod 220. The clamp structure 230 may be aSpraying Systems Teejet AA111-1/2 that has been modified by the additionof an increased length round head machine screw in combination with aplastic (e.g., nylon) spacer, and wing nut 232 to fit the machine screw.This combination allows repeated manual adjustment without the use oftools.

A wing nut 232 is then used to secure the two clamps around the supportrod 220 to secure the nozzle turret 110, 112 in a desired location alongthe length of the support rod 220. In this example, the wing nut 232 maybe loosened to allow the two clamps to disengage from the outer surfaceof the support rod 220 so that the nozzle turret 110, 112 can be slidalong the length of the support rod 220 and rotated around the outersurface of the support rod 220 to be repositioned on the boom 108. Thecylindrical interface of the connection fastener 230 with the supportrod 220 also allows radial adjustment of the nozzle turrets 110, 112 tomaintain proper nozzle angle through the range of adjustment of boom108.

The spray assembly 102 may also include two identical pressure gauges116, 118. The pressure gauges 116, 118 are fluidly connected between thehoses 120, 122 and the respective nozzle turrets 110, 112. The pressuregauges 116,118 provide a visual output regarding the fluid pressurebeing provided to the nozzle turret 110, 112 by the hoses 120, 122. Thepressure gauges 116, 118 allow a user to better compare the spraycharacteristics of the nozzles 114 by understanding the fluid pressureprovided thereto. The pressure gauges 116, 118 are generally located onthe boom so as to be easily viewable by both an operator and audience.

In one embodiment, the pressure gauges 116, 118, nozzle turrets 110,112, one or more valves, and a hose fitting may be connected to form asubstantially unitary nozzle assembly structure. This nozzle structureallows for the nozzle turrets 116, 118 to be repositioned on the boom108 without requiring the individual components (e.g., pressure gauges116, 118) to be repositioned separately. This decreases the complexityinvolved in precisely moving each individual component of the nozzleassembly to a new location, increases the rigidity of the assembly, andincreases the speed at which the nozzles can be relocated along theboom.

With reference to FIG. 4, the spray in assembly 102 may also include twoor more hinge brackets 194. The hinge brackets 194 may be connected tothe cover 160 and the boom 108. The hinge brackets 194 may be integrallyformed with the cover 160 or may be a separate component connectedthereto. A threaded axle 213 is used to connect the boom 108 to thehinge brackets 194. In one embodiment, the outer surface of the axel 213may include knob ends of sufficient size and clamping surfaces such thatwhen hand tightened, adequate friction is provided such that the boom108 may be adjusted through a substantially infinite range of anglesaround the axle 213. Additionally, the axel 213 is configured so thatthe friction between the brackets 194 and the boom 108 will besufficient to hold the position of boom 108 at various heights relativeto the base 162.

With reference to FIGS. 2 and 11, the spray assembly 102 may alsoinclude two or more floor panels or spray catch panels 138, 140. As willbe discussed in more detail below, the spray catch panels 138, 140 inthe operation orientation may be connected to side panels 134,136,respectively, by a watertight and flexible hinged connection such aswaterproof adhesive. This ensures that fluid impacting the sidewalls134, 136 will be directed back towards a center of the case and into thereservoirs.

The spray catch panels 138, 140 may be used in conjunction with therecirculation reservoirs 240, 242 and may be sized to fit insidereservoir trays 240,242, so as to slope from the hinge points onsidewalls 134, 136 towards a center of the base 162. The edges of thespray catch panels 138, 140 may be supported by the top surfaces offilters 244, 246. This allows the fluid to travel from the verticalsurfaces of the sidewalls 134, 136 over the hinge and onto the spraycatch panels 138,140 then be channeled into the recirculation reservoirs240, 242 respectively towards a drain gap 150, as will be explainedbelow. In instances where the recirculation reservoirs trays 240 and 242are omitted the catch panels 138,140 can be folded vertically planar andaffixed to the sidewalls 134, 136 so as to be stored out of the way orto be removed from the kit 100.

In some embodiments, the spray assembly 102 may include a reservoir trayor reservoir tank. FIG. 13 is a top perspective view of the sprayassembly 102 with the spray catch panels 138, 140 in the vertical planarposition so that they are hidden in this view for clarity. Withreference to FIG. 13, the spray assembly 102 may include a firstreservoir tray 240 and a second reservoir tray 242. Each of the traysmay define a cavity that receives fluid from the nozzles 114 and isfluidly connected to the control assembly 104. For example, each of thereservoir trays 240, 242 may include a drain or reservoir outlet 248,250 that is fluidly connected to connection hoses from the controlassembly 104.

Each of the trays 244, 246 may also include filters 244, 246. Thefilters 244, 246 allow the demonstration kit 100 to be run in anon-circulation mode such as with an external reservoir or fluid source.The filters 244, 246 may be screwed into the end of a hose assembly tofluidly connect the reservoirs to a storage or drain container or area.In the recirculation mode, the top ends of the filters 244, 246 are usedto support the catch panels 138, 140 to prevent the panels from becomingsubmerged within the reservoir.

In some embodiments, the spray assembly 102 may include a reservoir tray240, 242 for each spray chamber 208, 210, where the reservoir trays 240,242 are fluidly connected to the nozzle turrets 110, 112 of eachrespective spray chamber 208, 210 via the drain gaps 150, 152 (i.e., thespace uncovered by the catch panels). By having two separate reservoirtrays 240, 242 the demonstration kit 100 may be used simultaneously withtwo different fluids. However, in instances where one type of fluid maybe used in both spray chambers 208, 210 of the spray assembly 102 mayinclude a single reservoir, e.g., the base 162 itself may function asthe reservoir. Similarly, in instances where more than two types offluids may be used, the spray assembly may include more than tworeservoirs.

Assembly of the spray assembly 102 will now be discussed in more detail.FIG. 14 is a top perspective view of the case 106 of the spray assemblywith select elements hidden for clarity. With reference to FIGS. 2, 7,9A, 10A, and 14, the base 162 may be connected to the cover 160 throughone or more hinges 256 a, 256 b, 256 c, 256 d that rotatably connect thecover 160 to the base 162. In addition to the hinges 256 a, 256 b, 256c, 256 d, two support bars 252, 254 may be connected to the sidewalls170, 184 of the cover 160 and base 162. Each of the support bars 252,254 may be connected to a portion of the sidewall forming an end of thecase 160 or base 162 and extend towards a corresponding end sidewall ofthe other of the case 160 or the base 162. In this manner, the supportbars 252, 254 may extend at an angle between the cover 160 and the base162 to provide additional strength and support for when the cover 160 isin the open position and substantially perpendicular to the base 162.

The support bars 252, 254 may be substantially rigid to help prevent thecover 160 from rotating forward towards the base 162 until a userdesires to rotate the cover 160. Support bars 252, 254 lock the preciseperpendicularity of the cover 160 in relation to the base 162, whichassist in maintaining the balance of the spray assembly 102, especiallyduring operation. In this particular embodiment, hinges 256 a-d allowthe cover 160 a rotative range of greater than 180 degrees in relationto the base 162 if the support bars 252, 254 are not installed. In otherembodiments, this perpendicularity could be designed as a limitingcharacteristic of the hinges 256 a-d, and another locking feature couldbe designed to prevent the cover 160 from unintentionally closing. Insome embodiments, components for the spray assembly 102 may be anchoredto the interior surface 168 of the cover 160 to increase the weight ofthe cover 160 while the support bars 252, 254 help to support thisadditional weight so that the cover 160 may remain substantiallyperpendicular to the base 162 when in the operating orientation.

Once the base 162 is connected to the cover 160, the boom 108 may beconnected to the cover 160. In particular, the hinge brackets 194 may befastened or otherwise secured to the interior surface 168 of the cover160. The arms 222, 224 of the boom 108 may then be connected via theaxel 213 or other fastener to the hinged bracket 194. The axel 213 maybe selected so as to form a hinge 192 between the arms 222, 224 of theboom 108 so that in a first position the arms 222, 224 may extendupwards and outwards from the cover 160 and raise the boom support rod220 above a top edge of the cover 160 in the open positioning and allowthe boom 108 to rotate about the pivot at the hinge 192 to a collapsedposition where the boom 108 is received within the cover cavity 174. Inthe collapsed position, the boom 108 may be parallel to the longitudinalportions of the sidewall 170, and the arms 222, 224 may be parallel tothe end portions of the sidewall 170 of the cover 160.

The light element 226 may then be connected to the spray assembly 102.In one embodiment, the lighting element is affixed to the back wallpanels 124, 134,136 by the attachment feature 208. As briefly explainedabove, the length of the attachment feature 208 may be selected so thatthe lighting element 226 may be positioned at varying vertical positionsrelative to the base 162.

As shown in FIG. 14, the lighting element 226 includes the light bulbs(LEDs in this case) adhered to a square aluminum tube. That backside ofthe tube includes an adhesive hook corresponding to the adjustmentfeatures 206 on the back wall panels 124, 134 and 136. A removabletwo-pole electrical connector may also be included on the lightingelement 226.

In addition to affixing the light element 226 to the back panels 124,134,136 by the hook and loop fasteners (or other type of fasteners)provides additional rigidity to the panel assembly. The connection ofthe lighting element 226 to the cover 160 may depend on the type oflighting element 226 used as well as the desired location of the light,as such many different connection mechanisms and locations areenvironed. In some embodiments, the lighting element 226 may beconnected in a similar manner to the boom 108 and may be rotatable froman extended position to a collapsed position. For example, the lightingelement 226 may include hinges that allow the lighting element 226 to berepositioned relative to the cover 160. Alternatively, the lightingelement 226 may be fixed to the cover and the boom 108 may be moved intoan operating orientation so as to provide a light path for the lightemitted by the lighting element. However, in embodiments where thelighting element 226 is connected to the back panels it may be moreeasily focused on the spray patterns emitted from the nozzles 114 andless of the light may be blocked by other components.

With reference to FIG. 13, the reservoir trays 240, 242 may be at leastpartially received within the base cavity 190 and secured to thesidewall 184 of the base 162. For example, the reservoir trays 240, 242may include brackets that attach the sidewall 184. In another example,as shown in FIG. 13, the reservoir trays 240, 242 may have a width thatsubstantially matches a width of the base 162 and may be press-fit intothe base 162. In this example, the reservoir trays 240, 242 may beoriented at a slight angle (such as by being propped against the drainhoses) so as to encourage thorough draining and reducing the amount ofliquid needed to operate the spray assembly. In yet another example, thereservoir trays 240, 242 may be seated on shelves that extend from thesidewall and/or may be seated on the interior bottom surface 180 of thebase 162.

The reservoir tanks 240, 242 may then be fluidly connected to thecontrol assembly 104 via the outlets 248, 250. In particular, theoutlets 248, 250 may be connected to the interior check valves 265, 267via one or more tubes. With reference to FIG. 13A, the interior drainhoses may be fluidly connected to the reservoir trays 240, 242 and tocheck valves 265, 267 on the right end of the base 162. The check valves265, 267 may be internally check valved ports so as to be substantiallyflush with the outer surface of the base 162, which helps to protect thevalves during storage and transportation of the spray assembly 102. Thecheck valves 265, 267 may then be connected to the control box 102 viaadditional hose connectors, hoses, and the like. The check valves 265,267 when detached from external hoses may automatically seal to preventfluid from leaking from the base 162. This allows the fluid to becontained in the base 162 and allows the base cavity to be used as areservoir if desired.

With reference to FIGS. 11 and 12, once the boom 108 is connected to thecover 160, the nozzle turrets 110, 112 may be connected to the boom 108.In particular, the connection fastener 230 may be secured to the supportrod 220 via the wing nut 232. For example, the two clamps may bepositioned around the support rod 220 and the wing nut 232 is connectedto the ends of the two clamps and secured to clamp the connectionfastener 230 to the support rod 220. The nozzle turrets 110, 112 may belocated at a desired position along the length of the support rod 220.As discussed above, the pressure gauges 116, 118 may be permanentlysecured to the nozzle turrets 110, 112 via the nozzle assembly and thenozzle assembly may include a quick-disconnect fitting that attaches toa corresponding quick disconnect fitting on the inlet hoses 120, 122.

The catch panels 138, 140 may then be connected to the sidewalls 134,136 and extend over the opening in the base 162. The edges of the catchpanels 138, 140 rest against the top ends of the filters 244, 246 sothat they are angled so as to define a sloped floor that encouragesfluid to flow towards the drain gaps 150, 152. Fluid traveling on thetop surface of the floor panels 138, 140 may be drained into thereservoir tanks 240, 242 through the drain gaps 150, 152.

In one embodiment the floor or catch panels 138, 140 may be connected toa point on the sidewalls such as through adhesive, tape or may be formedintegrally therewith and a crease or fold line may be used to separatethe panels from one another. The sidewall panels 134, 136 extendingupwards from the base 162 and are orientated substantially parallel tothe end sidewalls of the base 162.

The back wall panels 124, 126, 128, 130 can be connected along a backlongitudinal sidewall of the base 162. The back wall panels may beconnected by a plurality of brackets 196, 198 and may be configured sothat the panels are mounted below the top edge of the base 162. In thisconfiguration, the panels are better able to prevent wicking and loss ofthe overspray that could happen if the panels were mounted on top of theedge or behind the edge of the base.

The first sidewall 124 may be oriented such that the cutout 200 may bealigned with the hinge bracket 194 and the boom arm 222 so that the boom108 can extend from the cover 160 outward through the cutout 200.Similarly, the back wall 130 cutout 202 may be aligned with the boom arm224 and the corresponding hinge bracket 194 to allow the boom 108 toextend outwards through the cutout 204. The two panels 124, 130 may beconnected to the base 162 via wall brackets 196, 198 connected to thesidewall 184 of the base 162. The brackets 196, 198 help to secure thepanels in position on the base. The middle panels 126, 130 may beconnected to the brackets 196, 198 as well in a similar manner as theother panels.

In the current embodiment, the end back wall panels 124, 130 may beformed integrally with the sidewall panels 134, 136. The perpendicularangle of the side panels and the back panels, along with the attachmentof the center panel to the cover (e.g., through hook and loop), thelighting element 226, and the attachment of the panels to each otherprovides additional rigidity for the panels. In these embodiments, therigidity of the panel material and the back wall panels 124, 140connection to the brackets 196, 198 helps to secure the sidewall panels134, 136 to the base 162. It should be noted that the spray assembly mayinclude more brackets, in one example, there may be five brackets, thatconnect to the panels.

The dividing wall 146 may then be connected to its correspondingfastener points on the back wall panels 126,128 based on a desiredlocation of the dividing wall 146. In one embodiment, the tabs 214, 216may extend parallel to the back wall panels 126,128 when the dividingwall 146 is connected thereto whereas the dividing wall 146 may beperpendicularly oriented relative to the back wall panels 126, 128. Inmany instances the dividing wall 146 may be oriented so as to be placedat the junction between the two reservoir trays, which helps to ensurethat fluid from the spray chambers remains in each chamber's respectivereservoir.

The attachment feature 206 allows the dividing wall 146 to be located atsubstantially any location along a length of the base 162, which allowsthe length of the spray chambers 208, 210 to be varied by a user. Forexample, a user can place the dividing chamber 146 at multiple locationsbased on the desired spray characteristics to be demonstrated with thedemonstration kit 100.

The splash guard 144 may then be connected to the spray assembly 102.The splash guard 144 may extend along the opposite base sidewall fromthe back wall panels 124, 126, 128, 130 and may be substantiallyperpendicular to the sidewalls 134, 136 and the dividing wall 146.

In the traveling orientation, the various panels 124, 126, 138, 130,134, 136, floor panels 138, 140, and dividing wall 146 may bedisconnected from the base 162 and each other and be received within thebase cavity 190 for storage. Similarly, the splash guard 144 may bepositioned within the base cavity 190 for storage.

With reference again to the operation orientation of the demonstrationkit, the boom 108 may then be rotated so as to be adjacent the interiorsurface 168 of the cover 160. The lighting element 226 and the boom 108may be configured such that they are received within the cover cavity174 when it the collapsed or traveling orientation (see FIG. 14).

After the components of the spray assembly 102 are positioned within thecover 160 and/or base 162, the cover 160 may be rotated relative to thebase 162 and the latches 164 a, 164 b, 164 c, 164 d may be closed tosecure the cover 160 to the base 162. In this manner, substantially all,or all of the components, of the spray assembly 102 may then betransported by carrying or rolling the case 106. This allows the sprayassembly 102 to be portable and easily moved.

The splash assembly 102 may further include one or more support legs.For example, the support legs may be connected to the bottom of the base162 through one or more brackets. The legs may be slid through thebrackets and extend past the front and back surfaces of the base 162.The legs may include skid pads to help reduce the base from sliding onthe support surface (e.g., table, floor, etc.). The legs provideadditional stability for the assembly, especially during operation.

Control Assembly

The control assembly 104 will now be discussed in more detail. FIG. 15is an enlarged front view of the control assembly illustrating a controlpanel. FIG. 16 is a top perspective view of the control assembly withthe case in an open position. FIG. 17 is a perspective view of thedemonstration kit in a traveling orientation. With reference initiallyto FIGS. 1, 15, and 16, the control assembly 104 may include a controlcase 156 or box. Similar to the case 106 of the spray assembly 102, thecontrol case 156 may include a cover 388 and a base 340. The controlcase 156 may be substantially similar to the spray case 106, but mayhave a shorter length than the spray case 106. The control case 156houses the control system for the demonstration kit 100 and is fluidlyconnected to the spray assembly 102 through plurality of hoses andvalves 120, 122, 260, 262, 265, 267, as will be discussed in more detailbelow.

A control panel 290 may be connected to an outer surface on a first endof the base 340 of the control box 156. The control panel 290 includestwo inlets 302, 300 that are fluidly connected to hoses from the sprayassembly 102. Additionally, the control panel 290 may include aplurality of input buttons or dials 304, 306, 308 that may be used tooperate the demonstration kit 100. For example, two of the input dials304, 306 may be rheostats that are used to vary the speed of thecorresponding pumps 312, 314 and thereby the outlet flow from the pumps.Varying the pump speed results in varying pressure differences dependingon the nozzle 114 chosen at turret 110,112. The electronic control ofthe pumps via the input dials 304, 306 allows for easy adjustment of thepump characteristics without having to manually adjust any features(e.g., manually vary the flow path, siphon fluid off the flow, etc.)within the control assembly and/or spray assembly. The third button 308may be used to turn the control assembly 104 on or off. Finally, thecontrol panel 290 may also include a display 312. In the example shownin FIG. 15, the display 312 is used to provide a visual output of thecurrently available voltage. However, in other embodiments, the display312 may be used to display other characteristics of the control assembly104, e.g., flow rate, fluid pressure, etc.

In some embodiments the control panel 290 may also include a remoteswitch. The remote switch may be used to selectively activate remoteoperation of the control panel 290 and/or control assembly 104. Forexample, the remote switch may be used to activate a remote sensor(e.g., infrared sensor) that detects signal from a remote controller.See, e.g., FIG. 22.

With reference to FIG. 16, the control assembly 104 may include one ormore pumps 312, 314. In one example, the control assembly 104 mayinclude one pump 312, 314 for each nozzle turret 110, 112. However, insome instances the spray assembly 102 may include multiple turrets 110,112 that can be selectively connected to a pump and therefore mayinclude more turrets 110, 112 than pumps. In the example shown in FIG.16, each of the pumps 312, 314 may be substantially similar to eachother.

The pumps 312, 314 may be self-priming diaphragm pumps and generallychemical resistant. In some embodiments the pumps may pump around 100psi with a low amp draw from the power supply. For example, the pumps312, 314 may be 12 volt pumps and pump at least 1.4 gallons per minuteunder full pressure at full speed.

The pumps 312, 314 may be controlled by a pulse width modulation (PWM)signal from the control circuit. The PWM signal selectively provides aconstant voltage to the pumps 312, 314 in order to vary the speed of thepumps. This means that the pumps 312, 314 are selectively turned on/offin short bursts in order to create the desired output flow. Because thepumps 312, 314 are driven by the PWM signal they do not run at fullpower, which reduces the power consumed by the pumps 312, 314,prolonging the battery life for the control assembly 104. Additionally,because the characteristics of the pump can be changed electronically,the system does not need to include a pump bypass to vary the outputpressure. By not having a bypass, the demonstration kit may be easier toclean and decontaminate as the fluid path from the reservoir to thenozzles may be unsophisticated, i.e., not a lot of turns, bends, orcorners.

As one example, by running the pumps 312, 314 at 0.75 amps, the pumps321, 314 may consume only a third of the power as typically required andmay operate on the battery power alone for over 1 hour. Conventionaldemonstration devices typically varied the flow speed andcharacteristics by manually changing the flow path, e.g., throughexhausting fluid, bypassing, or diverting fluid, so that the pumps weretypically run at their constant full power, which increased the powerconsumed.

As will be discussed in more detail below, the diaphragm configurationof the pumps 312, 314 creates a pulsing fluid flow, which depending onthe operating speed, may create visible pulses in the fluid that may notbe desirable for certain nozzle demonstrations. Accordingly, in someembodiments the control assembly 104 includes a dampening assembly. Withreference to FIG. 16, the control assembly 104 may include two dampeningtubes 316, 318 that form the dampening assembly. In other embodiments,the dampening assembly may include one or more pulsation dampeners.

The dampening tubes 316, 318 may be formed of a flexible material thatcan expand and contract with the fluid flow, such as an elastomericmaterial. For example, in one embodiment the dampening tubes 316, 318may be a ½′ NORPRENE tubing having a durometer hardness shore A and avalue or rating of 61. In operation, the dampening tubes 316, 318 absorbthe fluctuations in the fluid by expanding and contracting. The tubes316, 318 thus act to dampen the pulses and flatten out the fluid flow toremove the sinusoidal (or other wave shape) introduced into the flow dueto the PWM signal driving the pumps.

The damping tubes 316, 318 may also include a more rigid material, suchas a poly-braided material, on an interior surface. The rigidityprovided by the additional structural material helps to retain the shapeof the tubes 316, 318 and allows the tubes to handle higher pressures,such as pressures around 100 psi.

As briefly mentioned above, in some embodiments, the pumps 312, 314and/or other components of the control assembly 104 may be incorporatedinto the spray assembly 102. However, in embodiments where the pumps312, 314 are incorporated into the separate control assembly 104, thedemonstration kit 100 may be easier to transport as the pumps 312, 314may add additional weight to the spray assembly 102 and may be easier totransport separately. Additionally, the control box 104 may be smallerthan the spray assembly 102 and may be stored in a separate locationfrom the spray assembly 102. For example, it may be desirable to storethe spray assembly 102 outdoors, in a warehouse, or other non-climatecontrolled environment based on available space and other factors. Inthis example, the control assembly 104 which includes the pumps 312,314, may be stored separately from the spray assembly 102 so that thepumps 312, 314 can be stored in a climate controlled environment whichmay prevent damage to the pumps. As one particular example, duringwinter the pumps 312, 314 may be stored in a warm environment so thatthey are not damaged while the larger spray assembly 102 may be storedin a non-climate controlled area where space may not be as restricted.

The control assembly 104 may include an inlet hose 320, 322 and anoutlet hose 316, 318 for each of the pumps 312, 314. The inlet hoses320, 322 may be fluidly connected to quick-disconnects 300, 302, andtheir corresponding output quick-disconnects. These quick disconnectsincorporate check valves to prevent escape of fluids when the hoses aredisconnected. Suction hoses 260, 262 may be connected of the sprayassembly 104, which fluidly connects the pumps 312, 314 to the reservoirtrays in the spray assembly 102 via the check valves 265, 267. Thedampening hoses 316, 318 of the control assembly 104 may be fluidlyconnected to the hoses 120, 122 of the spray assembly 102 via one ormore quick disconnects.

The control assembly 104 may also include one or more power supplies orpower assemblies. In one embodiment, the control assembly 104 mayinclude a portable power supply and a fixed power supply. For example,as shown in FIG. 16, the control assembly 104 may include one or morebatteries 346, 348 and may include a power cord in electricalcommunication with each of the batteries 346, 348. The power cord may beused to charge the batteries 346, 348 and may provide power to thecontrol assembly 104 while in use. In this manner, the control assembly104 may be used in locations without an alternating current powerconnection (e.g., wall outlet), but may also be used while the batteries346, 348 are charging in locations that include a fixed voltage powersupply. The batteries 346, 348 may include an adapter that connects tothe fixed power supply, in some instances the adapter may be able tocharge the batteries via an automobile charger (e.g., cigarette lighteroutlet).

In one embodiment, the control assembly 104 may be configured to run ona 12 Volt direct current (VDC) power supply. In this embodiment, thebatteries 346, 348 and the power cord may be configured to supply about12 VDC to the control circuit 324 and control panel 290. In conventionalspray demonstration tables, the power supply required to drive the pumpswas around 110 or 220 volt AC supply depending on location. By usingonly 12 volts, the control assembly 104 of the present disclosure may besafer to use and may be used in more locations. In particular, becausethe control assembly 104 is fluidly connected to the reservoirs andfluids such as water are being pumped by the control assembly 104, thelower voltage used reduces the risk of injury to a user in the eventthat one of the pumps may leak or fluid may otherwise enter into thecontrol assembly 104. Additionally, more locations may be able to supplythe 12 VDC power supply as opposed to the higher 110 volt supply.

The control assembly 104 may also include the control circuit 324. Thecontrol circuit 324 may include a pulse-width modulated motor speedcontroller (PWM) for each pump, the controller varies the speed of itspump as a result of input from the rheostats incorporated in dials304,306. The control circuit 324 may be in electrical communication withthe control panel 290 and the input buttons 304, 306, 308, the pumps312, 314, and the batteries 346, 348. In this manner the control circuit324 may operate one or more components of the control assembly 104 basedon user input via the control panel 290. The control circuit may bemodified as desired and may include a processor or another componentthat executes and receives instructions. In these examples the controlcircuit 324 may be able to receive user inputs such as a preprogrammedvariations in fluid pressure, flow rate, or the like and execute thosevariations in a predetermined sequence. However, in other embodiments,the control circuit 324 may be less expensive and may not include aprocessor and may rely on user input to selectively vary the pumps.

With reference to FIG. 1, in an operating orientation the controlassembly 104 may be powered on via the power switch 308 on the controlpanel 290 or one or more power switches 350, 352 on the spray assembly102. Additionally, the reservoir hoses 260, 262 may be connected to theinlets 300, 302 in the control panel 290 through the check valves 265,267 and the outlet hoses 120, 122 may be fluidly connected to the pumpoutlet hoses 316, 318 via a back side of the control case 156. In someembodiments, the reservoir hoses 260, 262 may be connected to a rear oranother location on the control panel 290 (i.e., on another surfaceother than the surface including the various control buttons).

In this configuration, the control assembly 104 is configured to pullfluid from the reservoir trays 240, 242 of the spray assembly 102 andprovide fluid to the nozzle turrets 110, 112 as discussed below. Itshould be noted that in the operating orientation, the cover 388 of thecontrol case 156 may be opened or closed and the orientation of thecover 388 does not affect the operation of the components of the controlassembly 104. However, in many instances it may be desirable to closethe cover 388 when in the operation orientation so as to protect theinternal components of the control assembly 104 from fluid splashingfrom the spray assembly 102 or other debris that may damage componentsof the control assembly 104.

With reference to FIG. 17, in the traveling or compact orientation, thecover 388 of the control box 156 may be closed over the base 340 andlatched thereto. Additionally, the hoses 120, 122, 260, 262 may bedisconnected from the control box 156. A protective cover 342 may beslid over the control panel 290 and attached via attachment features344, 346 (see FIG. 15) on the outer surface of the control box 156. Theprotective cover 342 helps to prevent debris from entering into thecontrol assembly 104 components via the inlets 300, 302 (that may beexposed to the elements when the hoses 260, 262 are disconnected). Theprotective cover 342 may also help to prevent the pumps 312, 314 frombeing inadvertently activated as the cover 342 may prevent the inputbuttons 304, 306, 308 from being switched on or off.

Operation of the Demonstration Kit

With reference to FIG. 1, operation of the demonstration kit 100 willnow be discussed. Initially, both the spray assembly 102 and the controlassembly 104 are arranged to be in the operation orientation. Thereservoir trays 240, 242 may then be filled with a fluid (e.g., water,chemicals, or the like), or the base cavity 190 may be filled with afluid, and/or the spray assembly 102 may be fluidly connected to a fluidsource (e.g., external reservoir). Once the reservoir trays 240, 242 oranother reservoir has been filed, a user may then activate the controlassembly 104 by selecting the power switch 308. In some embodiments, thespray assembly 102 may include indicator lights 350, 352 that illuminatewhen the control assembly 102 is activated or alternatively the buttons350, 352 may be used to selectively activate the control assembly 104 orselect components thereof.

Once the control assembly 104 is activated, the control circuit 324provides power from the batteries 346, 348 (or fixed power source) andprovides a signal to the pumps 312, 314. The pumps 312, 314 then pullfluid from the reservoir trays 240, 242 through the hoses 360, 362through the reservoir tank outlets 248, 250. The fluid then flows intothe pumps 312, 314 through the inlets 300, 302 in the control panel 290.The fluid is then forced through to the pump outlet and into therespective dampening tubes 316, 318.

From the dampening tubes 316, 318, the fluid is provided to the hoses120, 122. The fluid then travels through each pressure gauge 116, 118into a respective nozzle turret 110, 112 and out the activated nozzle114. The pressure gauge 116, 118 provides a visual output regarding thefluid pressure of the fluid within the hose 120, 122 as it is deliveredto the nozzle turret 110, 112.

To change the fluid pressure or other characteristics, the user canrotate or otherwise modify the control knobs 304, 306 on the controlpanels 290. For example, by rotating the first control button 304, theuser may increase or decrease the speed of the first pump 312, which mayvary the output characteristics of the fluid exiting the nozzle 114 ofthe first turret 110. It should be understood that both pumps 312, 314may operate at different speeds to produce varying outputcharacteristics. For example, a user may wish to compare the same nozzle114 at two different pump speeds to determine which outlet pressure mayoperate best with the nozzle. Alternatively, the pumps 312, 314 may beconfigured to operate at the same speed or otherwise varied so thatnozzles having different geometries, shapes, materials, and/or differentfluids can be more easily compared.

After the fluid exits the nozzle 114, the fluid hits the sloped floorpanels 138, 140 and through gravity, is encouraged to head towards thedrain gaps 150, 152. From the drain gaps 150, 152 the fluid is depositedinto the reservoir trays 240, 242 allowing the fluid to be recirculated.This allows the demonstration kit 100 to reuse fluid such that fluid maynot be wasted. Additionally, the recirculation of the fluids allows thespray assembly 102 to operate continuously for extended periods. Itshould be noted that the division between the reservoir trays 240, 242and dividing wall 146 help to separate the fluid from the first spraychamber 208 from entering into the reservoir tank of the second spraychamber 210. This allows two separate fluids to be used at the sametime.

Integrated Reservoir

In some embodiments, the case 106 may define an integrated reservoir forthe spray demonstration kit 100. FIGS. 18A-19 illustrate various viewsof an example of the demonstration kit with an integrated reservoir.With reference to FIGS. 18A-18D, in one embodiment, the base 162 of thecase 106 may function as a reservoir with one or more of the recesses182 a, 182 b, 182 c, 182 d of the floor 180 acting as drainage areas.For example, the recesses 182 a, 182 b, 182 c, 182 d may be slopeddownward from other areas of the floor 180 so as to encourage fluid toflow from the floor 180 into one or more of the recesses 182 a, 182 b,182 c, 182 d. In some embodiments, the base 162 may include a singledrainage area or may include multiple drains as shown in FIGS. 18A-18D.

In embodiments including an integrated reservoir, the spray catch panels138, 140 may be inserted into the base 162 in a similar manner as shownin FIGS. 2 and 3, but with the bottom end of the spray catch panels 138,140 positioned against the floor 180 and/or edge of the desired recess182 b, 182 c. For example, the first spray catch panel 138 may bearranged to direct fluid from the first nozzle turret 116 towards thesecond recess 182 b, with the first recess 182 a being substantiallycovered by the spray catch panel 138. Similarly, the second spray catchpanel 140 may be positioned so as to direct fluid from the second nozzleturret 118 to the third recess 182 c.

Alternatively, the spray catch panels may be omitted and the fluidemitted from the nozzle turrets 116, 118 may be drained directly to thefloor 180 and the recessed configuration of the drainage areas orrecesses 182 b, 182 c encourages the fluid to flow towards therespective recesses. In these embodiments, the base 162 may includerecesses corresponding to the number of hoses 260, 262 so that fluiddoes not flow into recesses not including a drain. That is, in anembodiment including two pump hoses 260, 262, where the catch panels areomitted the demonstration kit 100 may include two drainage or recessedareas, rather than the four shown in FIGS. 18A.

With reference to FIG. 18C, the case 106 may also include a divider 414to define two fluid compartments or fluid reservoirs within the case106. In embodiments where different fluids may be emitted from thenozzle turrets 116, 118, the divider 414 may be used to ensureseparation of the fluids during the recycling process. For example, thedivider 414 may extend between the two sidewalls and be sealed or extendfrom the floor 180 to prevent fluid from a first fluid compartment fromentering into a second fluid compartment. In some embodiments, thedivider 410 may be a separate component inserted into the case 106. Forexample, the divider 410 may be inserted into and fastened against theouter walls of the case, but may be removable to allow disassembly anduse without the divider (e.g., for use with a single fluid).

The number and locations of the divider 414 may be varied based on theposition of the nozzle turrets 116, 118, as well as the number of fluidsused with the spray demonstration table. For example, in instances wherethree or more fluids may be used, three or more dividers 414 may beused. Additionally, the dividers 414 may be integrated with the case,permanently attached, or removable therefrom. As shown in FIG. 18B, twofasteners are used to secure the divider 414 to the rear sidewall of thecase 106, but in other embodiments, other types of fastening mechanisms,such as, but not limited to, adhesive, bonding processes, or the likemay be used.

With continued reference to FIGS. 18A-19, in embodiments including anintegrated reservoir, the pump intake hoses 260, 262 may be positionedin one or more of the respective recesses 182 a, 182 b, 182 c, 182 d.For example, as shown in FIGS. 18A and 18B, the first pump intake hose260 is positioned within the second recess 182 b and the second pumpintake hose 262 is positioned in the third recess 182 c. The number ofintake hoses and drainage locations may vary as desired. Locating thepump intake hoses 260, 262 and inlets in the drainage areas allowssubstantially all of the fluid to drain from the reservoir or base ofthe floor 180 into the inlets.

In some embodiments, the pump intake hoses 260, 262 may be configured torestrain an inlet 402, 404 within the recess 182 b, 182 c. For example,the hoses 260, 262 may be bent, clamped, or otherwise arranged so thatthe inlet 402, 404 remains within the lowest region of the recess 182 b,182 c. Additionally or alternatively, with reference to FIGS. 18A and19, in some embodiments, a fastener 408 or other securing member may beused to secure the inlet 402, 404 into the lowest area of the recess 182b, 182 c. For example, adhesive, wires, or the like may be used tosecure the inlet 402, 404 and/or portions of the hoses 260, 262 in adesired location within the recess 182 b, 182 c. The fastener 408 (seeFIG. 19) assists in ensuring that the inlet 402, 404 is located in thedrain and that fluid will flow from the bottom or floor 180 of the basetowards the inlet 402, 404 so that the fluid can travel back to the pumpassembly via the hoses 260, 262. The fastener may be adhesive or anothercomponent configured to secure the inlet in the drain area. ₌In oneembodiment the fastener 408 may include an attraction plate 415. Theattraction plate 415 may be positioned in the drain and may be a metalor other magnetic material, such as stainless steel, that is affixed tothe drain. The attraction plate 415 is configured to exert a force, inone example, a magnetic force, against the inlet 402, 404 to help ensurethat the inlet 402, 404 remains in the desired location in the drain. Inthese embodiments, the inlets 402, 404 may include a magnetic element orother corresponding attraction element that interacts with theattraction screen.

In some embodiments, the inlets 402, 404 may also include a filter 412.The filter 412 may be located on a terminal end of the inlets 402, 404and acts to substantially prevent particles and debris from enteringinto the hoses 260, 262. For example, the filter 412 may be a mesh orscreen with openings of a predetermined size that allow water and otherfluids to pass therethrough, but block the passage of particulates andthe like. The size and configuration of the filter 412 may be selectedbased on the fluids used and the like. By preventing debris from flowingin to the hoses 260, 262 the filter 412 helps to ensure that the pumpsand other components of the demonstration kit 100 are not damaged. Inembodiments including the attraction plate 415, the attraction elementfor the inlets 402, 404 may be included within, incorporated into, orconnected to the filter 412. In other embodiments, the attractionelement may be connected in other areas as well.

With reference to FIGS. 18A-19, the demonstration kit 100 of FIGS.18A-19 operates in substantially the same manner as the demonstrationkit 100 of FIG. 1. However, rather than the fluid from the sprayassembly 104 draining from the spray catch panels 138, 140 into thereservoirs 240, 242, the fluid may drain from the spray catch panels138, 140 into the recesses 182 b, 182 c. Alternatively, the spray catchpanels 138, 140 may be omitted and the fluid may drain directly into therecesses 182 b, 182 b.

Additional Embodiments

In some embodiments, an adjustable bracket may be used to secure theboom 108 in a desired position. FIG. 20 illustrates an isometricenlarged view of a bracket assembly 500 for the boom 108. FIG. 21illustrates a front elevation view of the spray demonstration table ofFIG. 20. With reference to FIGS. 20 and 21, the bracket assembly 500 mayinclude a bracket 503 including a plurality of bracket apertures 502defined therethrough. The bracket assembly 500 also includes a pin 508(see FIG. 21) and pin cord 504. The pin 508 is secured to the boom 108by the pin cord 504 and the length of the pin cord 504 allows the pin508 to be positioned in a number of the bracket apertures 502 so thatthe boom 108 can be positioned at a variety of positions relative to thebracket 503. For example, the boom 108 may be rotated from a storageposition (FIG. 20) to a demonstration position (FIG. 21) and the pin 508may then be inserted into the corresponding bracket aperture 502 on thebracket body 503 to secure the boom in the desired position relative tothe bracket. To rotate the boom 108 to another position, the pin 508 isremoved and the boom 108 can then be rotated to another desiredposition.

The spray demonstration table 102 may also include one or more lightsources. For example, as shown in FIG. 20, a light source 506, which maybe plurality of LEDs, fluorescent lights, incandescent lights, organiclight emitting diodes, or the like. The type of lights within the lightsource may be varied as desired.

In some embodiments, the spray demonstration table may also include oneor more filters 510 a, 510. With reference to FIG. 21, a first filter510 a and a second filter 510 b may be positioned between the nozzleturrets 110, 112 and the reservoirs. The filters 510 a, 510 b may be aplastic non-woven filter matrix that may be substantially the samedimensions as the reservoir. The filters 510 a, 510 b catch oversprayand assist in catching fine sprays to better recirculate the fluids inthe spray demonstration table.

For example, in one embodiment, the filters 510 a, 510 b, may each be arigid polyester filter pad about ½′ thick. The filters 510 a, 510 b maybe cut wider than the basin and bent to form an arch front to back suchthat the majority of the surface remains above the water level. Thefilters 510 a, 510 b may be sufficiently rigid to support themselves andstand up on their own. In embodiments where the material is polyester,the polyester is hydrophobic, which is advantageous in shedding waterwhen done to allow for quicker drying. The filters 510 a, 510 b aid inproviding additional texture, facilitating the capture and sequestrationof the spray and reducing secondary splatter or overspray.

Control Panel

As briefly discussed above, in some embodiments, the control panel 290may be remotely activated and may be varied from the control panelillustrated in FIG. 15. FIG. 22 illustrates a front elevation view ofanother example of the control panel. With reference to FIG. 22, in thisexample, the control panel 520 may include a plurality of controlactuators 522, 524, 526, 530. The control actuators 522, 524, 526, 530may be used to selectively activate or modify one or more components orcharacteristics of the spray demonstration table. For example, the firstcontrol actuator 522 may be used to power on or off the pumps and othercomponents of the spray demonstration table 102. The second and thirdcontrol actuators 524, 526 may be similar to the control actuators 304,306 in FIG. 15 and may be used to control the pump speed, torque, or thelike to vary the output characteristics of the nozzles. The fourthcontrol actuator 530 may be used to allow manual or remote activationand control of the spray demonstration table 102. For example, pressingthe control actuator 530 into the remote position may activate aparticular sensor (e.g., IR sensor) that may detect control signals froma remote controller and when remote control is not desired, the controlactuator 530 may be pressed into the manual position and the sensor maybe turned off. This selective activation of the remote sensor helps tosave power when remote control of the spray demonstration table 102 isnot desired. Also in some embodiments, such as the one shown in FIG. 22,the control panel 520 may include a display 528 for displaying data orother information about the spray demonstration table 102. In FIG. 22,the display 528 is an electronic display (e.g., light emitting diode,liquid crystal, or the like) that displays the voltage consumed by thesystem. However, other types of information may be displayed if desired,some examples include, time running, flow rate through each of thenozzles, pump speed, fluid pressure through the nozzles, or the like.

It should be noted that in the embodiment shown in FIG. 22, the controlpanel 520 does not include the reservoir hoses 260, 262. In thisembodiment, the reservoir hoses 260, 262 enter the pump system throughthe rear of the control panel 520. This provides a more aestheticallypleasing interface for the user and also helps to reduce the potentialfor a user to inadvertently remove one of the hoses 260, 262 whileselecting or moving one of the control actuators.

Conclusion

Although the present disclosure has been described with a certain degreeof particularity, it is understood the disclosure has been made by wayof example, and changes in detail or structure may be made withoutdeparting from the spirit of the disclosure as defined in the appendedclaims.

All directional references (e.g., upper, lower, upward, downward, left,right, leftward, rightward, top, bottom, above, below, vertical,horizontal, clockwise, and counterclockwise) are only used foridentification purposes to aid the reader's understanding of theexamples of the invention, and do not create limitations, particularlyas to the position, orientation, or use of the invention unlessspecifically set forth in the claims. Joinder references (e.g.,attached, coupled, connected, joined and the like) are to be construedbroadly and may include intermediate members between the connection ofelements and relative movement between elements. As such, joinderreferences do not necessarily infer that two elements are directlyconnected and in fixed relation to each other.

In some instances, components are described by reference to “ends”having a particular characteristic and/or being connected with anotherpart. However, those skilled in the art will recognize that the presentinvention is not limited to components which terminate immediatelybeyond their point of connection with other parts. Thus the term “end”should be broadly interpreted, in a manner that includes areas adjacentrearward, forward of or otherwise near the terminus of a particularelement, link, component, part, member or the like.

In methodologies directly or indirectly set forth herein, various stepsand operations are described in one possible order of operation butthose skilled in the art will recognize the steps and operation may berearranged, replaced or eliminated without necessarily departing fromthe spirit and scope of the present invention. It is intended that allmatter contained in the above description or shown in the accompanyingdrawings shall be interpreted as illustrative only and not limiting.Changes in detail or structure may be made without departing from thespirit of the invention as defined in the appended claims.

What is claimed is:
 1. A demonstration kit comprising: a spray assemblycomprising: a case having a base and a cover rotatably coupled to thebase; a plurality of back wall panels configured to be secured to asidewall of the base; a boom connected to an interior surface of thecase; and one or more nozzles connected to the boom and repositionablealong a length of the boom; a control assembly comprising an electricalinput; and at least one pump that when in an operating orientation isfluidly connected to the one or more nozzles.
 2. The demonstration kitof claim 1, wherein the at least one pump comprises a first pump and asecond pump.
 3. The demonstration kit of claim 1, wherein the pluralityof back wall panels are a corrugated plastic material.
 4. Thedemonstration kit of claim 1, wherein the kit can be assembled by handwithout tools.
 5. The demonstration kit of claim 1, wherein the at leastone pump is controlled by a pulse width modulation signal.
 6. Thedemonstration kit of claim 1, wherein the control assembly furthercomprises a dampening assembly to dampen pulses in the fluid pumped bythe at least one pump.
 7. The demonstration kit of claim 6, wherein thedampening assembly comprises a plurality of elastomeric tubes connectedbetween an outlet of the at least one pump and the one or more nozzles,wherein a length of the elastomeric tubes corresponds to the dampeningprovided by the dampening assembly.
 8. The demonstration kit of claim 1,wherein the one or more nozzles are movable along the length of thenozzle support rod and radially repositionable about an axis thereof. 9.The demonstration kit of claim 1, wherein the boom is rotatably coupledto the cover such that the boom is configured to rotate between acollapsed position, where the boom is positioned within a cavity definedby the cover, and an extended position, where the boom is positionedabove a top edge of the cover.
 10. A spray pattern demonstration systemcomprising: a control case, comprising: an electrical input; a controlpanel in electrical communication with the electrical input; and a firstpump in electrical communication with the control panel and theelectrical input; and a spray case in selective fluid and electricalcommunication with the control case, comprising: a nozzle support rod; aplurality of nozzles positioned along a length of the nozzle supportrod; and a first reservoir in selective fluid communication with thefirst pump.
 11. The system of claim 10, wherein during operation thefirst pump pumps fluid from the reservoir to the plurality of nozzles.12. The system of claim 10, wherein the spray case further comprises afluid drain path fluidly connecting the nozzles to the reservoir,wherein during operation fluid is recirculated within the system. 13.The system of claim 10, wherein the control case further comprises asecond pump in electrical communication with the control panel and theelectrical input; and the spray case further comprises a secondreservoir in selectively communication with the second pump; wherein thefirst reservoir and the second reservoir are fluidly separated from eachother; and the first pump and the second pump are independentlycontrolled by the control panel.
 14. The system of claim 10, wherein theelectrical input is configured to receive a direct current supply thathas an operating voltage of about 12 volts.
 15. The system of claim 10,wherein the control panel varies one or more characteristics of thefirst pump via a pulse width modulation signal provided to the firstpump.
 16. The system of claim 10, wherein the first reservoir is formedintegrally with the spray case.
 17. The system of claim 16, wherein thefirst reservoir comprises at least one drainage area.
 18. The system ofclaim 16, further comprising a divider connected to the control case,wherein the divider defines the first fluid reservoir and a second fluidreservoir.
 19. The system of claim 18, wherein the divider is formedintegrally with the control case.
 20. The system of claim 18, whereinthe divider is removable from the control case.